- Sistema Latino -- Sister Ora Miller
- Sister Paul -- Sita Stuhlmiller
- Sitaar Tah! -- Six
- Six-1 -- Six Under Par
- Six Volt -- Sixty Six
- Sixty Sleepers -- Sjur Hjeltnes
- Sjur Milieteig -- Skalpell
- Skam -- Skate the Razor
- Skatebaard -- Skeleton Rock
- Skeleton Trees -- Skid Baxter
- Skid Marks -- SKINNEY BOY
- Skinney Boy -- Skip Mahoney
- Skip Mahoney & The Casuals -- Skitzofreniks
- Skitzofrenix -- Skramble
- Skrap -- Skullfish Cactus
- Skullflower -- Sky High Music
- Sky in Land -- Skyfox
- Skygate Jam -- Skyscrapers
- Skyscreeper -- Slalom
- Slam -- Slashtipher J. Coleman
- Slashtipher J. Coleman -- Slawomir Kurkiewicz
- Slawomir Swierzynski -- Sleeping for Science
- Sleeping For Sunrise -- Sleet